Instrument-board lamp



C. BRAMMI NG. INSTRUMENT BOARD LAMP.

APPLICATION FILED 55. I4. 1921.

1,400,208, Patented Dec. 13, 1921.

I an/endow:

umrso 'STAATES PATENT OFFICE.

CARI, BRAMMING,'OF CHICAGO, ILLINOIS, ASSIGNOR TO ACCESSORIES IMANUFAC- TUBING GOMI PANY, A CORPORATION OF ILLINOIS.

- INSTRUMENT-BOARD LAMP.

Specification of Letters Patent.

Patented Dec. 13, 1921.

To all whom it may concern:

Be it known that I, CARL BRAMMING, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Instrument-Board Lamps, of which the following is a specification, and which are illustrated in the acoompanying drawings, forming a part thereof. 1

The invention relates to instrument board lamps and has as an object the provision of a lamp which'will throw directed beams of light on a plurality of instruments in an automobile and which will not allow an other light to escape.

An illustrative embodiment of the invention is shown in the drawings in which Figure 1 is a side view of a lamp, the instrument board being shown in section;

Fig. 2 is a transverse-section on line 2-2 of Fig. 1;

Fig. 3 is a longitudinal section on line 3-3 of Fig. 2; i

Fig. 4 is a transverse section on line 1-51 of Fig. 1;

Fig. 5 is a detail side view of an alternative form of attaching means; and

Fig. 6 is a side view of a special tool for securing the lamp when the attaching means of Figs. 1 to 4, inclusive, is used. The lamp is shown as comprising abase 10 having a flange 11, lamp socket 12 and securing stem 13, all preferably formed by pressing a single pieceof tubin to the form shown. A p ug 14 of .a usua form is secured in the tube and the socket 12 is fitted to hold the lamp 15 in connection with the plu 14 all in the well known manner.

1% attach the lamp to the board-16 the stem portion 13 of the tube may be provided with a pair of cam slots 17, and a collar 18 having instanding studs '19 may be placed flange 11 firml over the stem portion 13 with the studs in the slots and ma thenbe revolved when the cam shape 0 the slotswill draw the against the instrument board. The too 20 may be applied'to the collar with its stud 21 in engagement with the opening 22 in the collar and ma be utilized as a 'wrench to tighten the connection. After-the lamp has been thus firmly secured thescrew 23 of the collar may be firmly set up, thus preventing the loosening of the fixture. v

inner margin of each aperture.

an adj ustab In the form of Fig. 5 the stem portion 13 of the tube is threaded and a nut24 is applied to secure the lamp to the board in a well known manner.

For attachment of a shield 25 for lamp 15, a collar 26 is shown secured to the flange 11 of the base 10 by being turned ther'eabout as at 27. A set-screw may be passed through the wall of the shield tube 25, and into a threaded opening in the collar to securely hold the shield in place.

To allow the escape of light in the desired directions only a plurality of openings 28, 29 and 30 are shown in the shield. The openings may be of any desired number, size and shape. Preferably, as shown, the

wall of the shield 25 is pressed in at the The light from the lamp 15 is reflected through the openings backward toward the board by means of a conical reflector 31, carried upon the end of a plug 32, the'outer end 83 of which serves as a finish for the accessory a flange 34 being provided to limit the inward movement of the reflector. The rays of light from-the lamp 15 will be reflected from the conical mirror in all directions radially from the axis of the lamp, and will be dispersed. By moving the reflector axially of the lamp the portion of the rays which will escape from the apertures may be selected so as to determine the direction of. the escaping beams.

The lampmay be made applicable to any one of a number of cars by having the reflector movable. When made for a particular car the length of the reflector carrying plug may be so made as to give the desired direction of the rays when the flange 34 is seated against the end' of the shield 25, and the plug may be permanently secured to the shield.

I .claim as my invention 1. An instrument board lamp comprising,

in combination, a lamp, a shield for said lamp havin a plurality of apertures,- a reflector in said shield, and means for adjusting said reflector to vary the direction of the rays emitted from said apertures.

2. An instrument board lamp comprising in combination, a lamp, a shield for said lamp having a plurality of apertures, and

e re

instrument board.

ector in said shield adapt- I ed to direct the rays emitted towardthe I 1 3. An instrument board lamp comprising, in combination, a lamp, .a shield for said lamp having an aperture, a reflector, and means for adjusting said reflector axially of said lamp to vary the direction of light passing through said aperture.

4. An instrument board lamp comprising, in combination, a lamp, a shield for said lamp having an aperture, and a reflec- 6. An instrument board lamp comprising,

incombination, a lamp, a shield .for said lamp having an aperture, a'conical dispersing reflector arranged in said shield with its axis directed toward the lamp, whereby to direct light through the aperture toward the plane of the base of the lamp, and means to adjust the reflector axially of the shield to vary the direction of the light.

7. An instrument board lamp comprising, in combination, a securing stem, a lamp socket, an outwardly pro'ecting flange therebetween formed b axial y compressin a single piece of tu ing, said stem an flange constituting a base, a collar surrounding the tubing and secured to the flange, a

between formed by axially compressing a single piece of tubing, said stem and flange constituting a base, a collar surrounding the tubing and secured to the flange, a shield mounted on said collar and having an aperture, areflector closing the end of the shield and adapted to direct light throughv the aperture toward the plane of the outwardly projecting flange, means for adjusting the reflector axially of the shield to vary the direction of light, and means to secure the base to an instrument board. 9. An instrument board lamp comprising, in combination, a securing stem, a lamp socket, an outwardly projecting flange therebetween formed by axiall compressing a single piece of tubing, said stem and flange constituting a base, a collar surroundin the tubing and secured to the flange, a shield mounted on said collar and having an aperture, a conical reflector closing the end of the shield and adapted to direct light through the aperture toward the plane of the outwardly projecting flange, and means to secure the-base to an instrument board.

CARL BRAMMING. 

